PI3B32160 Datasheet, PDF (1/4 Pages) Pericom Semiconductor Corporation – 3.3V, Low Capacitance 16-Bit to 32-Bit, DeMux NanoSwitch™ with Precharged Outputs

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3.3V, Low Capacitance 16-Bit to 32-Bit,
Demux PCI Hot Plug Bus Switch with
Precharged Outputs for Live Insertion
Product Features
• R_ON is 5Ω typical
• Pullup on B1 and B2 ports
• Low Power: 50µW typical
• Industrial Operation Temperature: –40ºC to +85ºC
• Near Zero propagation delay
• Switching speed: 4.5ns max.
• Channel on capacitance: 14pF max.
• V_CC Operating Range: 3V to +3.6V
• Package available: 56-pin TSSOP (A)
Logic Block Diagram
VBIAS1
1A
1B1
VBIAS2
1B2
VBIAS1
16A
16B1
VBIAS2
SEL1
SEL2
16B2
Function
nA to nB1
nA to nB2
nA to nB1 and nB2
nB1, nB2 = VBIAS
SEL1
L
H
L
H
SEL2
H
L
L
H
Product Description
Pericom Semiconductor’s PI3B series of logic circuits are produced
using the Company’s advanced submicron CMOS technology,
achieving industry leading performance.
The PI3B32160 is a 16-bit to 32-bit demultiplexer bus switch.
Industry leading advantages include a propagation delay of 250ps,
resulting from 5Ω channel resistance and low I/O capacitance.
A port demultiplexes to either 1B and 2B or to both. The switch is
bidirectional.
Application
Provides PCI Hot Plugging
Logic Inputs
The logic cotrol inputs can be driven up to +3.6V regardless of the
supply voltage. For example, given a +3.3V supply. IN may be driven
low to 0V and high to 3.6V. Driving IN Rail-to-Rail minimizes power
consumption.
Power-Supply Sequencing and OvervoltageProtection
Caution: Do not exceed the absolute maximum ratings because
stresses beyond the listed ratings may cause permanent damage to
the device.
Proper power-supply sequencing is recommended for all CMOS
devices. Always apply V_CC before applying V_BIAS and signals to
the input/output pins.
Pin Description
1B1 1
2B1 2
2A 3
3B1 4
4B1 5
4A 6
5B1 7
6B1 8
6A 9
7B1 10
8B1 11
8A 12
GND 13
VCC 14
9B1 15
10B1 16
10A 17
11B1 18
12B1 19
12A 20
13B1 21
14B1 22
14A 23
15B1 24
16B1 25
16A 26
VBIAS1 27
SEL1 28
56-Pin
A
56 1A
55 1B2
54 2B2
53 3A
52 3B2
51 4B2
50 5A
49 5B2
48 6B2
47 7A
46 7B2
45 8B2
44 GND
43 VCC
42 9A
41 9B2
40 10B2
39 11A
38 11B2
37 12B2
36 13A
35 13B2
34 14B2
33 15A
32 15B2
31 16B2
30 VBIAS2
29 SEL2
1
PS8420C 05/04/00